<template>
<div class="app-container">
    
    <!--查询表单-->
    <el-form :inline="true" class="demo-form-inline">
    <el-form-item>
        <el-input v-model="teacherQuery.name" placeholder="讲师名" />
    </el-form-item>
    <el-form-item>
        <el-select v-model="teacherQuery.level" clearable placeholder="讲师头衔">
        <el-option :value="1" label="高级讲师" />
        <el-option :value="2" label="首席讲师" />
        <el-option :value="3" label="特级讲师" />
        </el-select>
    </el-form-item>
    <el-form-item label="添加时间">
        <el-date-picker
        v-model="teacherQuery.begin"
        type="datetime"
        placeholder="选择开始时间"
        value-format="yyyy-MM-dd HH:mm:ss"
        default-time="00:00:00"
        />
    </el-form-item>
    <el-form-item>
        <el-date-picker
        v-model="teacherQuery.end"
        type="datetime"
        placeholder="选择截止时间"
        value-format="yyyy-MM-dd HH:mm:ss"
        default-time="00:00:00"
        />
    </el-form-item>
    <el-button type="primary" icon="el-icon-search" @click="getTeacherListPage()">查 询</el-button>
    <el-button type="default" @click="resetData()">清空</el-button>
    </el-form>

    <!-- 表格 -->
    <el-table
    v-loading="listLoading"
    :data="list"
    element-loading-text="数据加载中"
    border
    fit
    highlight-current-row
    >
    <el-table-column label="序号" width="70" align="center">
        <template slot-scope="scope">
        {{ (page - 1) * limit + scope.$index + 1 }}
        </template>
    </el-table-column>

    <el-table-column prop="name" label="名称" width="80" />

    <el-table-column label="头衔" width="80">
        <!-- 讲师判断 -->
        <template slot-scope="scope">
        {{ scope.row.level === 1 ? "高级讲师" : "首席讲师" }}
        </template>
    </el-table-column>

    <el-table-column prop="intro" label="资历" />

    <el-table-column prop="gmtCreate" label="添加时间" width="160" />

    <el-table-column prop="sort" label="排序" width="60" />

    <el-table-column label="操作" width="200" align="center">

        <template slot-scope="scope">

            <router-link :to="'/teacher/edit/' + scope.row.id">
                <el-button type="primary" size="mini" icon="el-icon-edit">修改</el-button>
            </router-link>

            <!-- scope表示表格对象 -->
            <el-button
                type="danger"
                size="mini"
                icon="el-icon-delete"
                @click="removeDataById(scope.row.id)">删除</el-button>
        </template>

    </el-table-column>
    </el-table>
    <!-- 分页 -->
    <!-- <el-pagination
    :current-page="page"
    :page-size="limit"
    :total="total"
    style="padding: 30px 0; text-align: center;"
    layout="total, prev, pager, next, jumper"
    @current-change="getTeacherListPage" 
    /> -->

    <el-pagination
    background
    :current-page="page"
    :page-size="limit"
    :total="total"
    style="padding: 30px 0; text-align: center;"
    layout="total, prev, pager, next, jumper"
    @current-change="getTeacherListPage"
    >
    </el-pagination>
    <!-- @current-change="getTeacherListPage()" 不行 -->
</div>
</template>

<script>
//import { getList } from "@/api/table"; // 引入接口地址
import teacher from "@/api/edu/teacher"; // 引入请求teacher.js

export default {
    //核心代码
    filters: {
        statusFilter(status) {
        const statusMap = {
            published: "success",
            draft: "gray",
            deleted: "danger"
        };
        return statusMap[status];
        }
    },
    data() {
        // 定义数据变量，初始值
        return {
        list: null, // 返回数据集合
        total: 0, // 总记录数
        page: 1, // 当前页
        limit: 5, // 大小
        teacherQuery: {}, // 条件
        listLoading: true
        };
    },
    created() {
        // 渲染前执行操作
        this.getTeacherListPage();
    },
    methods: {
        // 获取讲师列表 page = 1, limit = 4 等号后为默认值
        getTeacherListPage(page = 1) {
        this.page = page;
        this.listLoading = true;
        teacher.getTeacherListPage(this.page, this.limit, this.teacherQuery)
            .then(response => {
            // 接口返回数据：response
            console.log(response);
            // 获取数据
            // debugger 设置断点调试
            if (response.success === true) {
                this.list = response.data.rows;
                this.total = response.data.total;
            }
            this.listLoading = false;
            }) // 请求成功
            .catch(error => {
            // 接口返回数据：error
            console.log(error);
            }) // 请求失败
        },
        // 清空查询条件方法
        resetData() {
            this.teacherQuery = {}
            this.getTeacherListPage()
        },
        // 根据id删除讲师
        removeDataById(teacherId) {
            // 弹窗
            this.$confirm('此操作将永久删除该文件, 是否继续?', '提示', {
            confirmButtonText: '确定',
            cancelButtonText: '取消',
            type: 'warning'
            })
            .then(() => {
                teacher.removeDataById(teacherId)
                    .then(response => {
                        this.$message({
                            type: 'success',
                            message: '删除成功!'
                        })
                        this.getTeacherListPage()
                    })
            })
            .catch(() => {
                this.$message({
                    type: 'info',
                    message: '已取消删除'
                });          
            });
        }
    }
};
</script>
